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MG technical ceramics GmbH & Co. KG

Proprietor
Frau Michaela Gerweler
Phone 0 59 31 88 54 85

Selected mechanical and thermal properties

Features Silicon Nitride Tungston Carbide Steel
Density 3.23 g/cm³ 14.95 g/cm³ 7.8 g/cm³
Hardness ~ 76 HRc ~ 76 HRc ~ 60-67 HRc
Flexural Strength(3 pt. 20°C) 1000 MPa 2600 MPa 2000 MPa (Zug)
Compressive Strength > 4000 MPa 6200 MPa 1400 MPa
Young's Modulus 310 GPa 650 GPa 205 GPa
Poisson's Ratio 0.27 0.22 0.29
Fracture Toughness 7 MPa-√m 12 MPa-√m 70 MPa-√m
Thermal Expansion 3.0 x 10-6/°C 5 x 10-6/°C 12.5 x 10-6/°C
Thermal Conductivity 22 W/m-°C 100 W/m-°C 37 W/m-°C
Specific Heat 0.68 J/g-°C 0.34 J/g-°C 0.50 J/g-°C
max. Service Temperature 1000 °C 450 °C 180 °C